testtools.helpers : API documentation

Function	map_values	Map `function` across the values of `dictionary`.
Function	filter_values	Filter `dictionary` by its values using `function`.
Function	dict_subtract	Return the part of `a` that's not in `b`.
Function	list_subtract	Return a list `a` without the elements of `b`.

def map_values(function, dictionary):

Map function across the values of dictionary.

Returns A dict with the same keys as dictionary, where the value of each key k is function(dictionary[k]).

def filter_values(function, dictionary):

Filter dictionary by its values using function.

def dict_subtract(a, b):

Return the part of a that's not in b.

def list_subtract(a, b):

Return a list a without the elements of b.

If a particular value is in a twice and b once then the returned list then that value will appear once in the returned list.

testtools.helpers module documentation